JPS6195784U - - Google Patents

Info

Publication number
JPS6195784U
JPS6195784U JP17994784U JP17994784U JPS6195784U JP S6195784 U JPS6195784 U JP S6195784U JP 17994784 U JP17994784 U JP 17994784U JP 17994784 U JP17994784 U JP 17994784U JP S6195784 U JPS6195784 U JP S6195784U
Authority
JP
Japan
Prior art keywords
holes
boom
drawn
pitch
boom body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP17994784U
Other languages
English (en)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP17994784U priority Critical patent/JPS6195784U/ja
Publication of JPS6195784U publication Critical patent/JPS6195784U/ja
Pending legal-status Critical Current

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Landscapes

  • Jib Cranes (AREA)

Description

【図面の簡単な説明】
第1図は本考案に係るブームの斜視図、第2図
は穴部分の斜視図、第3図は穴部分の縦断面図、
第4図は他の実施態様の穴部分の縦断面図、第5
図は座屈強度と絞り深さとの関係説明図、第6図
はブームにおける断面箇所の説明図、第7図は絞
り径と面外変化量との関係説明図、第8図はブー
ムにおけるピツチ算出のための解析説明図、第9
図は絞りによる壁面座屈強度の説明図である。 1はブーム本体、3は穴。

Claims (1)

  1. 【実用新案登録請求の範囲】 ブーム本体1の側面部2に長手方向に一定のピ
    ツチP間隔で穴3を設けると共に穴3に絞り加工
    を施し、ブーム本体1の上、下面部6,7間の寸
    法をBとするとき、 絞り径D=0.5〜0.7×B 絞り深さH=5〜10mm ピツチ P≦B 穴径 DH−0.7〜0.9×D としたことを特徴とするブーム。
JP17994784U 1984-11-29 1984-11-29 Pending JPS6195784U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17994784U JPS6195784U (ja) 1984-11-29 1984-11-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17994784U JPS6195784U (ja) 1984-11-29 1984-11-29

Publications (1)

Publication Number Publication Date
JPS6195784U true JPS6195784U (ja) 1986-06-20

Family

ID=30737510

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17994784U Pending JPS6195784U (ja) 1984-11-29 1984-11-29

Country Status (1)

Country Link
JP (1) JPS6195784U (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04126659A (ja) * 1990-09-18 1992-04-27 Kawasaki Heavy Ind Ltd 車両の側構体構造
JPH0455465U (ja) * 1990-09-20 1992-05-12
JPH05262227A (ja) * 1992-03-18 1993-10-12 Kawasaki Heavy Ind Ltd 構造体の構造

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04126659A (ja) * 1990-09-18 1992-04-27 Kawasaki Heavy Ind Ltd 車両の側構体構造
JPH0455465U (ja) * 1990-09-20 1992-05-12
JPH05262227A (ja) * 1992-03-18 1993-10-12 Kawasaki Heavy Ind Ltd 構造体の構造

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